If your vehicle starts to lose traction because of water on the road, you should:

When driving in heavy rain at speeds as low as 30 mph, your tires may lose all contact with the road and instead ride up on a layer of water above the surface of the road. This is called "hydroplaning." If your vehicle starts to hydroplane, slow down gradually and do not apply the brakes.

• Drive at a constant speed to gain better traction.
• Apply the brakes firmly to prevent your vehicle from sliding.
• Slow down gradually and not apply the brakes.